Macro for automatically detecting/setting a scale

Posted by DavidG on
URL: http://imagej.273.s1.nabble.com/Macro-for-automatically-detecting-setting-a-scale-tp5021253.html

Hi,

I'm just getting started using ImageJ for some leaf area analysis and have a
question about automatically setting the scale for multiple images.  I
couldn't find another thread about this specific issue, but I apologize if
it has been addressed previously.

I need to analyze the areas of leaves in a large batch of images.  The
images will be taken against a uniform background containing an object of
known size for scale.  My dilemma comes from the fact that it will not be
possible for all of the images to be taken from a uniform distance, causing
the scale to differ slightly from image to image.

Is it possible to create a macro that can detect an object of known size
within each image and then set the scale accordingly?  Ideally, I would like
to be able to process many images in series. Any help or suggestions are
appreciated!

I've been really impressed looking through the ImageJ community's posts the
past few days and I'm excited at all of the possible functions!

Thanks,
David





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